import cv2
img=cv2.imread('bear.png')
dst1=cv2.resize(img,None,fx=2,fy=2)
dst2=cv2.resize(img,None,fx=1/3,fy=1/2)
dst3=cv2.resize(img,(200,200))
cv2.imshow('Input',img)
cv2.imshow('Resize1',dst1)
cv2.imshow('Resize2',dst2)
cv2.imshow('Resize3',dst3)
cv2.waitKey()
cv2.destroyAllWindows()